OK, so my best friend and I finally got to see this. My friend laughed at the bit of Busen tazing Beaker. But he paused and said, "...He used to be more subtle about it."
And I think that's my review for the whole show: They used to be more subtle about it.
I was able to detect a recurring pattern in this show. They start making a joke, and the first line is actually pretty witty. But then for no apparent reason they start over explaining the joke, thus diluting the comedy. Like the AA meeting thing. If you'd just had Zoot say "Oh this is a meeting?" all disoriented, that would have been a witty, adult joke. But then they kept going, over explaining it, and it wasn't as funny as the set up.
I agree with the fans here who say the Muppets came off as mean. Particularly Kermit. And no, it has nothing to do with audience tastes changing or evolving. It's simply a case of imbalanced comedy writing. Comedy is always a mix of rudeness and wit. But if the wit is off, the characters can come off as mean.
Most of the moments I laughed at came from the long suffering human characters. The Muppets just seemed like pests, rather than endearingly insane.
I will say I genuinely felt sorry for Piggy when Kermit left her. The scene would have been perfect if it hadn't started with awkward jokes about selfies. Either take the moment seriously or don't. Balance can be achieved. The Muppets have done it many times.
I'll end this on a positive note. Janice's line about the guest band's original name was cute and actually very Muppety. As it stands, my vote goes to "so-so." Hopefully the writers will take note for the future.